Pad-cover.



PATENTED NOV. 26, 190? G. F. STEWART.

PAD COVER.

AYPLIUATION FILED FEB. s, 1907.

UNITE STATES PATENT Oililililllil.

GEORGE F. STEWART, OF LYNN, MASSACHUSETTS, ASSIGNOR TO MANUFACTURERS MACHINE COMPANY, OF MONTCLAIR, NEW JERSEY, A CORPORATION O1" NEW JERSEY.

PAD-COVER.

Patented Nov. 26, 1907'.

Original application filed July 13. 1906i Serial No. 32|l'-i'/. Divided oud this application filed Tebrnxiry 6, 1907.

' Serielrlo. 356,034.

vTo all whom 'it may concern:

chusett's, have invented en Improvement in Pad-Covers, of which the `following description, in connection with the acclompanying,T drawings, is a specilicetion, like `letters on the drawings representing like par ts,

This invention to be hereinafter described relates to covers for bulling machine pads and more particularly, though not necesserily, to that general type known as N aumkeag machines the present invention beingI presented as e division of my application Se. No. 326,1fi7, iiled July i3, 1906.

As Well understood by those skilled in the art, the buiiing element 'of such machines is usuallysupplied with a detachable cover of abrading or other material, which, acting upon the work at high speed, is subjected to great weer and in consequence, rapid destruction or injury. It becomes necessary -irom time to timeA to remove a worn or injured cover, and apply a fresh one to the pad, and having this and other conditions oi us in mind, it is the object of the present invention to provide e cover for hurling pads, which shall present a shaped or molded contour in conformity with the operative condition ol" the pad to be'covered, be readily adaptable to the pad .without injurious distortion oi either, and. have provisions for strengthening the marginal portions thereotI while yet facilitating its circuiiiierential contraction.

W ith the ,above and other considerations in view, as will hereinafter appear, the invention com rises the subject-matter and l'ea tures es elined in the claims herewith presented, which will best be understood liom i the following description in connection with the accompanying drawings, wherein one of the various embodiments of the invention is selected for elucidating the invention.

' ln ,the drawings-Figlie l shows in pla-n view a form of blank from which 'the conipleted cover may be produced; Fig. is a plan view of a completed cover looking in the direction ofthe arrow, Fig. 3 and, Fig. 3 is e side elevation of the cover es it appears ready for application to a pad.

Referring to Figs. 2 and 23, the pad cover comprises preferably a molded orshapcd covering portion o, conforming substanthe bottoni ol` which extends inwardly or to# Vai-ds the couter as shown (Fig. 3), forming the outwardly Hanging walls d and e, which, for ideutilication, may be termed the inner and outer Walls or' lips, respectively, oi the chainiiei c. 'lhe outer Haring wall e extends beyond or is ol' greater extent than the inner ilariiig well d, and its periphersl edge forms the outward Haring perimeter of the cover, whereby thc cover muy be readily applied to the boiling pad, inasmuch as such construction prevents the margin ol tho cover r'rom beingv lient under duringthe application thereof to the pad. llt will be understood, of course, that the invention not restricted to the relativo proportions oll the inner and outer llarinv walls as shown, as obviously these, es weil as the degree oi iarc given the wells may vary according to the circumstances of use.

A pad cover oi' the general charco tei' so iarf the perhand by the continuity ol: the out.

ward .flaring Woll, present u continuous clauifug lip to engage the pod holder. The

continuous and uointerrupled character of.

the outward flaring wall or lip, also facilitalos the ready application oi the cover to thc pad without liability olinjur thereto, by splittingr or otlurwise,and avoids the ncccssity ol inlolds` or'irregular accumulations of surplus material at intervals along its pcrimeter.

.lllxtendiug transversely of the outwardly flaring woll or lip e are a serios of corrugat'ions, ribs, or ridges f desirable iii some cases, such corrugal-ioos, ribs, or ridges prelerably extending from the channel c to the outer perimeter oi the wall or lip e and sepnrated by plain 'llariug or uncorrugeted oortioiisf. These corrugatioiis, ribs, or ric ges iiu'iy be varied more or less in number. und may extend throughout the eut-irc circumferential eieoof the wall or lip e, alternating with plain flaring portions; or .such ooriugcQ tions, ribs,

v aportion only o such wall dr lip, as circum- 7 stancesI ci Ause may dictate;` but in th'evpartake of the cumferential other uninterrupted surf-ace oi the liptoliave blank, The manner of manipulating blank and the machine for converting it into: the pad cover hereinbefo're described, are full-y and completely `set forth in my appllr, cation hereinbeiore reerredto, andurt er description tliereofl is unnecessary.

Claim. l

i. A moldedbuiling pad cover having an outturned molded edigedprovided with shape retaining means moll e therewith.

2. A molded bufn'g pad cover or ridges Kmay extend throughout any event 'flaring nature of the lip cr'cjvall e and serve to set the` lip or wall in poi sition'and strengthen the same, impart cirelasticity adapting the cover to be'readi'ly applied'to the pad, and permit a close clamping iit of the wall-V or lip to the holder.

.lnthe forni of the invention .selected for illustration, it will be noted that the 'corrugationsyj?, entend from a surface of the lip e, that'is, thewallsfz, f (Fig. 3:) ot any corru-Y gation or ribdo not overlie each other'in the generalr plane ofthey lip e, ,asy would be the case ol a mere intold or plait, but preferably project from the plane oi the lip ethe w alle )i assuming 'allele relation.,

havingl an' verse shape retaining corrugations.

3. A molded boiling' pad cover having a molded unbroken edge provided with an Aout- Ward encircling reinforced channel, and havrugations, 4

4. A molded buiiing (paadtcover having. a continuous ed e lmolde toeonforin tothe edge of the pa to Which'it is to beiapplied.,l the perimeter ,of said edge being' outwardly iiared to fac' 'tate' thegapplieation of. said more or less par according tothe expansion or contraction o augmenting 'the li setting eilect oli suoli corrugations, and ena ding the a substantially continu ous bearing upon. the

holder. This form corrugatioii, rib, or coveijtofthiepad.y

ridge is'. desirable, but obviously" -the iuven- 5. A molded tionis not circumscrlibed by this detail. ymolded Jace to conform -to 'the operative. Asi stated in 'my application hereinbefoiie; shape oiv a pad and' having a channel c," and referred to the pad cover is preferably' flanking Ainner and outer walls d and 6,'ixe-A formed by molding it'to the desired. condi. spectively, the outer wall e being iliaring and tion, and. it has been. discovered that to pro? provi ed with? moldedstrengthenig meansl -duce a cover ,for. a bufiing pad having the 6. 'A moldedbuiling pad cover having a'- formfthat it must assume in shown in Fig. l.

- thatthejblank stretches uneve 4o isdueta thedact that some fore' described oi an elliptically shaped blank vmore than found itexpedient to form the pad hereinbe operation, the ed atintervals., blank` tobe operated upon should not be trulycii'oular, but essentiallyT elliptical7 as EX erience has shown that aitr'uiy' circular results in a deforme padcover when molded; owing to theiact y during the Such uneven stretching ot the threads oi cloth. or other material employed,

the molding action.

Forthis reason l have channeled margin crim 7..V Acover for a' b a working face, Va marginal portion contiguous to said working face molded to extend inward from. the peri hei7 of the Working -face, and. an outwar ly aring continuous edge portion, fsaidoutwardlyv flaring edge portion being provided with moldedcorrugations. f In testimony whereof, I have signed my inthe presence of molding operation.

thnlemieny tendy toi stretch during others.

name to this specification, two subscribing witnesses. A

GEORGE E. STEWART.

A, (Figi-1.), though it is to be understood, of Witnesses: course; that .the present invention is not in ADOLPH C. KAISER, any sense. restrictedto theus'e of such a FREDERICK L. EMERY.

ysuch v50 outturned molded edge'provided with transface molded to operative form and having'a L ing a iiaring margin provided radial conf pad cover having av 

